<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>购物车</title>
	<%@include file="/pages/common/head.jsp"%>
</head>
<script type="text/javascript">
	$(function () {
		//给 【删除】绑定单击事件
		$("a.deleteItem").click(function () {
			return confirm("你确定要删除【" + $(this).parent().parent().find("td:first").text() + "】吗？")
		});
		//给【清空购物车】绑定单击事件
		$("#clearCart").click(function () {
			return confirm("你确定要清空购物车吗？")
		});

		//给输入框绑定 onchange
		$(".updateCount").change(function () {
			//获取商品名称
			var name = $(this).parent().parent().find("td:first").text();
			var id = $(this).attr("bookId");
			//获取商品数量
			var count = this.value;
			if (confirm("你确定要将【" + name + "】商品修改数量为：" + count)){
				location.href = "http://localhost:8080/book/cartServlet?action=updateCount&count="+count+"&id="+id;
			}else {
				this.value = this.defaultValue;
			}
		});
	});
</script>
<body>
	
	<div id="header">
			<img class="logo_img" alt="" src="static/img/logo.gif" >
			<span class="wel_word">购物车</span>
		<%@include file="/pages/common/login_success_menu.jsp"%>
	</div>
	
	<div id="main">
	
		<table>
			<tr>
				<td>商品名称</td>
				<td>数量</td>
				<td>单价</td>
				<td>金额</td>
				<td>操作</td>
			</tr>
			<%--如果购物车空的情况--%>
			<c:if test="${empty sessionScope.cart.items}">
			<tr>
				<td colspan="5">
					<a href="index.jsp">亲，当前购物车为空！快去浏览商品吧！！！</a></td>
			</c:if>
			<%--如果购物车非空的情况--%>
			<c:if test="${not empty sessionScope.cart.items}">
				<c:forEach items="${sessionScope.cart.items}"  var="entry">
					<tr>
						<td>${entry.value.name}</td>
						<td>
							<input type="text" style="width: 80px;" bookId="${entry.value.id}" value="${entry.value.count}" class="updateCount" >
						</td>
						<td>${entry.value.price}</td>
						<td>${entry.value.totalPrice}</td>
						<td><a class="deleteItem" href="cartServlet?action=deleteItem&id=${entry.value.id}">删除</a></td>
					</tr>
				</c:forEach>
			</c:if>
		</table>
		<%--如果购物车非空才输出页面的内容--%>
		<c:if test="${not empty sessionScope.cart.items}">
			<div class="cart_info">
				<span class="cart_span">购物车中共有<span class="b_count">${sessionScope.cart.totalCount}</span>件商品</span>
				<span class="cart_span">总金额<span class="b_price">${sessionScope.cart.totalPrice}</span>元</span>
				<span class="cart_span"><a id="clearCart" href="cartServlet?action=clear">清空购物车</a></span>
				<span class="cart_span"><a href="orderServlet?action=createOrder">去结账</a></span>
			</div>
		</c:if>

	</div>

	<%@include file="/pages/common/footer.jsp"%>
</body>
</html>